ok its not a starrett but no matter how much i use it works fine. The actual size is smaller than what you can imagine from the picture, so keep that in mind. My knurling is not diamond shaped like in the picture, but straight knurling. The knurl mismatch isn't a functional issue for me, but since I wasn't expecting this based on the product image, I'll note it here so *you* won't be surprised. Overall, it meets my expectations and I'm happy with the low price.
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